Abstract
C-C chemokine receptor type 5 (CCR5) is known for its role as a co-receptor for HIV-1 infection. Some individuals possess a 32 bp deletion, known as Delta-32 allele which has been reported to confer resistance to HIV-1 infection. In order to estimate the distribution of Delta-32 allele of CCR5 gene, 1034 mestizo individuals from the Northwest of Mexico, including 385 HIV-1-infected individuals, 472 healthy controls and 177 uninfected female sex workers; were examined by allele-specific PCR. There was no statistically significant difference in the frequency of Delta-32 allele between HIV-1 positive and healthy individuals (OR= 1.1, p= 0.6). However, we found a significantly reduced prevalence of CCR5 Delta-32 heterozygous genotype in female patients (OR= 0.084, 95% CI= 0.011 - 0.630, p= 0.002), as well as in allele frequency, compared to male patients. Furthermore, we observed an inverse relationship between allele frequency and the risk of HIV-1 transmission and AIDS progression among female healthy controls, sex workers and HIV-1 infected groups. Our findings support previous data showing Delta-32 as a genetic protective factor against HIV-1 infection in Mexican women, as well as in women from other populations.
Keywords: AIDS, CCR5, delta-32, genetic marker, HIV-1, population genetics.
Current HIV Research
Title:Protective Effect of CCR5 Delta-32 Allele Against HIV-1 in Mexican Women
Volume: 11 Issue: 6
Author(s): JesUs A. Estrada-Aguirre, Silvestre G. Cazarez-Salazar, Luis A. Ochoa-Ramirez, Selene de J. Acosta-Cota, Roman Zamora-Gomez, Guilermi M. Najar-Reyes, Perla Villarreal-Escamilla, Ignacio Osuna-Ramirez, Sylvia P. Diaz-Camacho, Jorge G. Sanchez-Zazueta, Juan J. Rios-Tostado and Jesus S. Velarde-Felix
Affiliation:
Keywords: AIDS, CCR5, delta-32, genetic marker, HIV-1, population genetics.
Abstract: C-C chemokine receptor type 5 (CCR5) is known for its role as a co-receptor for HIV-1 infection. Some individuals possess a 32 bp deletion, known as Delta-32 allele which has been reported to confer resistance to HIV-1 infection. In order to estimate the distribution of Delta-32 allele of CCR5 gene, 1034 mestizo individuals from the Northwest of Mexico, including 385 HIV-1-infected individuals, 472 healthy controls and 177 uninfected female sex workers; were examined by allele-specific PCR. There was no statistically significant difference in the frequency of Delta-32 allele between HIV-1 positive and healthy individuals (OR= 1.1, p= 0.6). However, we found a significantly reduced prevalence of CCR5 Delta-32 heterozygous genotype in female patients (OR= 0.084, 95% CI= 0.011 - 0.630, p= 0.002), as well as in allele frequency, compared to male patients. Furthermore, we observed an inverse relationship between allele frequency and the risk of HIV-1 transmission and AIDS progression among female healthy controls, sex workers and HIV-1 infected groups. Our findings support previous data showing Delta-32 as a genetic protective factor against HIV-1 infection in Mexican women, as well as in women from other populations.
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Estrada-Aguirre A. JesUs, Cazarez-Salazar G. Silvestre, Ochoa-Ramirez A. Luis, Acosta-Cota de J. Selene, Zamora-Gomez Roman, Najar-Reyes M. Guilermi, Villarreal-Escamilla Perla, Osuna-Ramirez Ignacio, Diaz-Camacho P. Sylvia, Sanchez-Zazueta G. Jorge, Rios-Tostado J. Juan and Velarde-Felix S. Jesus, Protective Effect of CCR5 Delta-32 Allele Against HIV-1 in Mexican Women, Current HIV Research 2013; 11 (6) . https://dx.doi.org/10.2174/1570162X11666140101120225
DOI https://dx.doi.org/10.2174/1570162X11666140101120225 |
Print ISSN 1570-162X |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4251 |
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